| ElementSetDefinition | Initializes a new instance of the List class that is empty and has the default initial capacity. |
| ElementSetDefinition(IEnumerableIElementDefinition) | Initializes a new instance of the List class that contains elements copied from the specified collection and has sufficient capacity to accommodate the number of elements copied. |
| ElementSetDefinition(Int32) | Initializes a new instance of the List class that is empty and has the specified initial capacity. |